I brew one cup strong coffee [I use Starbucks Kenya] for myself since I don’t have a Vietnamese coffee press. [Next on my list of frivolous things to buy!]
Place 1 – 2 tbsp [I like to use 2.5 because I like it sweet] of condensed milk (the sweet, sticky milk – not evaporated!) in a glass, pour the hot coffee over it and stir until it’s a nice creamy light brown color. Then pour this mixture into a tall glass filled with lots of ice, & stir until the mixture is cold.